Socket Head Cap Bolt Screws are manufactured by Lakshman Tools Pvt. Ltd. Lakshman Tools Pvt. Ltd. Is an ISO 9001:2000 accredited company that manufactures high tensile steel fasteners suitable for applications in all types of industries and automobile companies. The fastener products are sold under the brand name of " RHINO" . Socket Head Cap Bolt Screws are made of Alloy Steel through Heat Treated process. Socket Head Cap Bolt Screws have the Strength Designation Class/Grade of 12.9. These Screws are used in the manufacturing of machine tools, test equipments and automotive assemblies.